<div class="gb">
  <div nz-row nzGutter="16">
    <div nz-col nzSpan="8">
      <nz-card nzTitle="Card title">
        <p>Card content</p>
      </nz-card>
    </div>
    <div nz-col nzSpan="8">
      <nz-card nzTitle="Card title">
        <p>Card content</p>
      </nz-card>
    </div>
    <div nz-col nzSpan="8">
      <nz-card nzTitle="Card title">
        <p>Card content</p>
      </nz-card>
    </div>
  </div>
</div>
